UN envoy: Yemen’s war has entered a ‘dangerous phase’ after Houthi gains and Red Sea threats

# What happened

United Nations Special Envoy for Yemen Hans Grundberg told the UN Security Council that Yemen has entered "a new and more dangerous phase of war." The warning followed a recent Houthi advance that included the capture of the port city of Mocha on the Red Sea coast, close to the Bab al-Mandeb strait.

# Why Mocha matters

Mocha sits near one of the world's busiest maritime choke points. Its capture gives the Houthis a direct presence on the Red Sea coast, which raises immediate concerns about freedom of navigation and the security of commercial and energy shipments transiting Bab al-Mandeb.

# Where the fighting is spreading

Grundberg said fighting has spread across Taiz, Hodeidah, Marib, al-Jawf and al-Bayda provinces. The clashes have killed civilians and driven new displacement since early September. The UN and Yemen's internationally recognised government provided different displacement figures: Grundberg cited more than 11,400 households displaced since September 3, while the government's UN ambassador, Abdullah Ali Fadhel Al-Saadi, reported at least 6,145 families (about 44,000 people) displaced.

# Regional consequences and international reactions

Arabia. Saudi and Gulf states strongly condemned those strikes and urged the Security Council to enforce UN resolutions and arms restrictions. Saudi Arabia reported 73 civilians wounded in strikes on September 8, according to its ambassador's remarks to the council.

Houthis, demanding an immediate end to attacks and the unconditional release of detained UN, humanitarian and diplomatic personnel.

# Humanitarian emergency

Affairs (OCHA) warned of a deepening food crisis. Key figures cited by OCHA in the council briefing:

• 18.3 million people face acute food insecurity.
• More than 2.2 million children under five suffer acute malnutrition, with more than half a million classed as severe.

OCHA described Yemen as a "hunger hotspot of highest concern," noting worsening access to food amid the renewed hostilities and population movements.

# What UN officials asked for

Grundberg urged the Houthis to halt attacks on commercial vessels and to stop threatening navigation. He called for continued diplomatic engagement, protection of civilians, and preservation of any political settlement. Yemen's government envoy pushed for stricter enforcement of restrictions on arms, components and expertise reaching the Houthis, arguing that piecemeal responses will not stop the escalation.

# Immediate risks to watch

• Further Houthi advances along the Red Sea coast that could disrupt shipping through Bab al-Mandeb.
• Expanding displacement and growing shortages of food and medical services in contested provinces.
• Intensifying cross-border strikes that could draw neighbouring states into wider confrontation.

Council convened to consider these developments as humanitarian indicators worsen and diplomatic appeals intensify.